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Accounts Receivable, Net (Details) - USD ($)
$ in Millions
Jun. 30, 2023
Sep. 30, 2022
Accounts Receivable, Net    
Accounts Receivable, before Allowance for Credit Loss, Current $ 1,514 $ 1,899
Other receivables 89 108
Allowance for uncollectible accounts 1 1
Accounts receivable, net $ 1,603 $ 2,007